Insufficient flow of water through boiler Check flow is at least 3 litres/min - rectify as necessary. Boiler cold water and hot water connections reversed. Check and rectify as necessary. Thermostatic mixing valve incorrectly fitted Check hot and cold inlets are connected correctly. Pump is not operating in hot water
Boiler Not Firing Up for Central Heating - 9 Common Reasons
15/12/2010 · 1.Take a 200 ml water sample in the stopped bottle. 2.Add one P- Alkalinity tablet and shake or crush to disintegrate. 3.If P-Alkalinity is present the sample will turn blue. 4.Repeat the tablet addition, one at a time (giving time for the tablet to dissolve), until the blue colors turns to
3.50 kW per ton, for compressors up to 50 tons capacity. 3.25 kW per ton, for compressors above 5 up to 50 tons capacity. 3.00 kW per ton, for compressors above 50 tons capacity. For Air conditioning (refer to 5.a.iii.): 0.90 kW per ton, for compressors 1.2 to 5 tons capacity. 0.80 kW per ton, for above 5 up to 50 tons
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Corrosion may occur in the feedwater system as a result of low pH water and the presence of dissolved oxygen and carbon dioxide. Corrosion in the boiler itself normally occurs when boiler water alkalinity is too low or too high or when the metal is exposed to oxygen-bearing water during either operation or
Annual health and safety statistics 2019/20 HSE has released its annual statistics on work-related health and safety in Great Britain.; The UK has left the EU, new rules apply Rules have changed for some industries. Find out if you are affected.